#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..."

ynh_systemd_action --service_name="$app.socket" --action="stop"
ynh_systemd_action --service_name="$app" --action="stop" --log_path="/var/log/$app/$app.log"

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1

# Remove old file
if [ -f "/usr/local/bin/lxd-p2c" ]; then
	ynh_secure_remove --file="/usr/local/bin/lxd-p2c"
fi

sed -i "/root:1000000:65536 # Added by lxd#/d" /etc/sub{u,g}id

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..."

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --source_id="go" --dest_dir="$install_dir/go" --full_replace=1

export PATH="$install_dir/go/bin:$PATH"

ynh_setup_source  --source_id="lxd" --dest_dir="$install_dir/lxd" --full_replace=1

export GOPATH="$install_dir/lxd/vendor/"

#=================================================
# SPECIFIC UPGRADE
#=================================================
# BUILD FROM SOURCES
#=================================================
ynh_script_progression --message="Building lxd from sources..." --weight=60

pushd "$install_dir/lxd"
	export HOME=${HOME:-"/root/"}

	ynh_exec_warn_less make deps
	export CGO_CFLAGS="-I${GOPATH}/raft/include/ -I${GOPATH}/dqlite/include/"
	export CGO_LDFLAGS="-L${GOPATH}/raft/.libs -L${GOPATH}/dqlite/.libs/"
	export LD_LIBRARY_PATH="${GOPATH}/raft/.libs/:${GOPATH}/dqlite/.libs/"
	export CGO_LDFLAGS_ALLOW="(-Wl,-wrap,pthread_create)|(-Wl,-z,now)"

	ynh_exec_warn_less make

	mkdir -p /usr/local/lib/$app
	mkdir -p /var/log/$app
	cp -a ${GOPATH}/{raft,dqlite}/.libs/lib*.so* /usr/local/lib/$app/
	cp ${GOPATH}/bin/{fuidshift,lxc,lxc-to-lxd,lxd,lxd-agent,lxd-benchmark,lxd-migrate,lxd-user} /usr/local/bin
	cp $install_dir/lxd/scripts/bash/lxd-client /etc/bash_completion.d/
popd

ynh_secure_remove --file="$install_dir/go"
ynh_secure_remove --file="$install_dir/lxd"

#=================================================
# REAPPLY SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_socket_config

ynh_add_systemd_config
yunohost service add "$app" --log="/var/log/$app/$app.log"

_ynh_add_dnsmasq

_ynh_add_ld_so

_ynh_set_subuid_subgid

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..."

ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/$app.log"

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Upgrade of $app completed" --last